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导航抽屉操作栏按钮无法使用

androidnavigation
45

我正在开发一个Android项目，尝试使用来自http://developer.android.com/training/implementing-navigation/nav-drawer.html的示例集成新的导航抽屉。

除了一个问题，它基本上可以工作，但是操作栏向上按钮不显示菜单。但是如果我从边缘滑动手指到主活动屏幕上，则菜单将出现，因此我知道实际菜单没有问题，只是操作栏按钮存在问题。

以下是代码：

public class MainActivity extends Activity {

    private DrawerLayout mDrawerLayout;
    private ListView mDrawerList;
    private ActionBarDrawerToggle mDrawerToggle;

    private CharSequence mTitle;
    private CharSequence mDrawerTitle;
    private String[] mPlanetTitles;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mTitle = mDrawerTitle = getTitle();
        mPlanetTitles = getResources().getStringArray(R.array.planets_array);

        mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
        mDrawerList = (ListView)findViewById(R.id.left_drawer);


        MenuItemAdapter menuAdapter = new MenuItemAdapter(this);

        menuAdapter.add(new MenuItem("Hello"));
        menuAdapter.add(new MenuItem("World"));
        menuAdapter.add(new MenuItem("Parsnips"));
        menuAdapter.add(new MenuItem("Turnips"));

        mDrawerList.setAdapter(menuAdapter);

        mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

        getActionBar().setDisplayHomeAsUpEnabled(true);
        getActionBar().setHomeButtonEnabled(true);

        mDrawerToggle = new ActionBarDrawerToggle(
                this,
                mDrawerLayout,
                R.drawable.ic_drawer, 
                R.string.drawer_open,
                R.string.drawer_closed)
        {
            public void onDrawerClosed(View view)
            {
                getActionBar().setTitle(mTitle);
                invalidateOptionsMenu();
            }

            public void onDrawerOpened(View drawerView)
            {
                getActionBar().setTitle(mDrawerTitle);
                invalidateOptionsMenu();
            }
        };

        mDrawerLayout.setDrawerListener(mDrawerToggle);
        if (savedInstanceState ==  null)
        {
            selectItem(0);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    private class DrawerItemClickListener implements ListView.OnItemClickListener {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            selectItem(position);
        }
    }

    private void selectItem(int position) {
        // update the main content by replacing fragments

        android.app.Fragment fragment = new PlanetFragment();
        Bundle args = new Bundle();
        args.putInt(PlanetFragment.ARGS_PLANET_NUMBER, position);
        fragment.setArguments(args);

        android.app.FragmentManager fragmentManager = getFragmentManager();
        fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();

        mDrawerList.setItemChecked(position, true);
        setTitle(mPlanetTitles[position]);
        mDrawerLayout.closeDrawer(mDrawerList);
    }

    @Override
    public void setTitle(CharSequence title)
    {
        mTitle = title;
        getActionBar().setTitle(mTitle);
    }

    @Override
    protected void onPostCreate(Bundle savedInstanceState)
    {
        super.onPostCreate(savedInstanceState);
        mDrawerToggle.syncState();
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig)
    {
        super.onConfigurationChanged(newConfig);
        mDrawerToggle.onConfigurationChanged(newConfig);
    }

    public static class PlanetFragment extends android.app.Fragment
    {
        public static final String ARGS_PLANET_NUMBER = "planet_number";

        public PlanetFragment()
        {

        }

        @Override
        public View onCreateView(LayoutInflater inflator, ViewGroup container, Bundle savedInstanceState)
        {
            View rootView = inflator.inflate(R.layout.fragment_planet, container, false);
            int i = getArguments().getInt(ARGS_PLANET_NUMBER);
            String planet = getResources().getStringArray(R.array.planets_array)[i];

            //((TextView)rootView.findViewById(R.id.fragment_text_view)).setText(planet);
            getActivity().setTitle("Planet: " + planet);
            return rootView;
        }
    }

    private class MenuItem
    {
        public String menuName;

        public MenuItem(String menuName)
        {
            this.menuName = menuName;
        }
    }

    public class MenuItemAdapter extends ArrayAdapter<MenuItem>
    {
        public MenuItemAdapter (Context context)
        {
            super(context,0);
        }

        public View getView (int position, View convertView, ViewGroup parent)
        {
            convertView = null;
            if (convertView == null)
            {
                convertView = LayoutInflater.from(getContext()).inflate(R.layout.row_menu_item, null);
            }

            /*TextView title = (TextView)convertView.findViewById(R.id.row_title);
            title.setText(getItem(position).menuName);
            title.setVisibility(View.VISIBLE);*/

            EditText title = (EditText)convertView.findViewById(R.id.row_edittext);
            title.setHint(getItem(position).menuName);
            title.setVisibility(View.VISIBLE);

            return convertView;
        }
    }
}

感谢您能提供的任何帮助。

5个回答
165

你忘记实现了onOptionsItemSelected方法

这里是魔法发生的地方:

@Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Pass the event to ActionBarDrawerToggle, if it returns
        // true, then it has handled the app icon touch event
        if (mDrawerToggle.onOptionsItemSelected(item)) {
          return true;
        }
        // Handle your other action bar items...

        return super.onOptionsItemSelected(item);
    }
11
谢谢，我不知道自己检查了多少次文档，但每次都不知怎么就错过了。感谢你的帮助。 - Boardy
如果我不想要一个ActionBar，那么我可以不包含上述代码吗？ - cafebabe1991
仅适用于v4，无法在ToolBar和android.support.v7.app.ActionBarDrawerToggle上工作。 - e-info128
这个解决方案对我没有用！尽管我缺少了这一部分！但它仍然有一个没有功能的向上箭头。 - Tintinabulator Zea
1
@TintinabulatorZea 你还漏了一点。你需要重写 onPostCreate() 并添加 actionBarDrawerToggle.syncState();。 - Bevor
显示剩余6条评论
6

对于那些仍然遇到困难的人，您可能会缺少这个方法（OP拥有但我已删除）：

@Override
protected void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);
    mDrawerToggle.syncState();
}
1
非常重要的是在onPostCreate中调用它...在onCreate中它不会起作用！谢谢伙计。 - josemigallas
1
这就是我正在寻找的汉堡图标。谢谢 :) - jeet.chanchawat
2
我成功了。
drawerToggle.setToolbarNavigationClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mDrawer.openDrawer(GravityCompat.START);
        }
    });
0

在这里，我将告诉您一种简单易行的方法，在不使用Android Studio的情况下创建Android抽屉式导航。我只是使用了ADT来创建导航抽屉。 以下是代码，请查看

activity_main.xml

<android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/dr_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <RelativeLayout 
        android:id="@+id/mainContent"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
     <TextView 
        android:id="@+id/txt1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="swipe content"/>
     <Button 
        android:id="@+id/bt1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text = "Click to open d"/>
   </RelativeLayout>
   <RelativeLayout 
        android:id="@+id/drawer"
        android:layout_width="200dp"
        android:layout_height="match_parent"
        android:layout_gravity = "start"
        android:background="#FFFFFF">
    <TextView 
         android:id="@+id/txt2"
         android:layout_width="200dp"
         android:layout_height="wrap_content"
         android:text="drawer content are here arr"/>
    <Button 
         android:id="@+id/bt2"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text = "Click to open d"/>
   </RelativeLayout>

</android.support.v4.widget.DrawerLayout>

MainActivity.java

package com.example.drawer1;
import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.res.Configuration;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.support.v4.widget.DrawerLayout.DrawerListener; 
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity {
    private DrawerLayout drawerLayout;
    private View drawerView;
    Button bt1,bt2;
    private DrawerListener myDrawerListner;
    private ActionBarDrawerToggle mDrawerTogle;
    @SuppressLint("NewApi")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        drawerLayout = (DrawerLayout) findViewById(R.id.dr_layout);
        drawerView = (View) findViewById(R.id.drawer);
        drawerLayout.setDrawerListener(myDrawerListner);
        bt1 = (Button) findViewById(R.id.bt1);
        bt2 = (Button) findViewById(R.id.bt2);
        mDrawerTogle =new ActionBarDrawerToggle(this, drawerLayout,  
        R.drawable.ic_drawer,R.string.open_drawer,R.string.close_drawer){
            public void onDrawerOpened(View drawerView) {
            // TODO Auto-generated method stub
                super.onDrawerOpened(drawerView);
                getActionBar().setTitle("SpeakEng");
            }
            public void onDrawerClosed(View view) {
            // TODO Auto-generated method stub
                super.onDrawerClosed(view);
                getActionBar().setTitle("SpeakEng");
            }
        };
        drawerLayout.setDrawerListener(mDrawerTogle);

        getActionBar().setDisplayHomeAsUpEnabled(true);
        getActionBar().setHomeButtonEnabled(true);

        bt2.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                   drawerLayout.closeDrawer(drawerView);
            }
        });

        bt1.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                   drawerLayout.openDrawer(drawerView);

            }
        });
    }
    @Override
    public void onConfigurationChanged(Configuration newConfig){
        super.onConfigurationChanged(newConfig);
        mDrawerTogle.onConfigurationChanged(newConfig);
    }
    public boolean onOptionsItemSelected(MenuItem item){
        if (mDrawerTogle.onOptionsItemSelected(item)){
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
    @Override
    protected void onPostCreate(Bundle savedInstanceState){
        super.onPostCreate(savedInstanceState);
        //Sync the toogle state after onRestoreInstanceState has occured.
        mDrawerTogle.syncState();
    }
   }

你可以通过以下三种方式打开抽屉：1）点击按钮，2）从左侧拉出，3）在操作栏上点击抽屉图标。你可以选择任何一种方式打开它。我给了你三个选项。

注意：drawerLayout必须是根元素，如代码所示。 并保持onConfigurationChanged（），onOptionsItemSelected（），onPostCreate（）。 这三种方法非常重要，用于创建导航抽屉。

祝你好运！

0

对我有用：

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    if (drawer.isDrawerOpen(GravityCompat.START)) {
        drawer.closeDrawer(GravityCompat.START);
    } else {
        drawer.openDrawer(GravityCompat.START);
    }
    return super.onOptionsItemSelected(item);
    
}
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